In most programming language popularity indexes, such as Tiobe, IEEE Spectrum, and PYPL, JavaScript, Java, and Python are the most popular languages.

Most programming jobs list a variety of languages. That's because most real-world projects require a mix of tools. So, even if you see an ad for a Java programmer, SQL is probably in the mix.

From the mainstream — TypeScript and Python have overtaken JavaScript in popularity, C# and Java continue to decline, while Rust is still in the «favorites». The most popular programming languages in ...